looking at a chilly weekend ahead tomorrow morning, here are the lows. 20 degrees in napa. you're in teens this morning. 25 santa rosa and fairfield. so not exactly sament temperatures. richmond, all into low 30s 34 oakland. now, as you look at big picture here, we're still stuck in this cold pattern into tomorrow morning. there is a cold system that is just going to drop south and rain begins to approach by 5:00 p.m toechl. you can see snow showing north and then the rain line starts to shift we continue on with wee hours of saturday morning could see brief, heavy rainfall, then, showers taper off but we'll continue to see wintery mix saturday morning. turning cold again heading into your sunday morning, monday morning looking at freezing cold conditions. bay area will be seeing a potential for 2 to 4 inches of snow. a winter weather advisory. from friday night to saturday morning. into sierra nevada low snow levels heavy snow. count on major delays. winter storm warning covering northern california not just higher elevations. going to cause delays tomorrow afternoon, mid-